# Problem: Consider the reaction between nitrogen and oxygen gas to form dinitrogen monoxide: 2 N2(g) + O2(g)  →  2 N2O(g), ΔHrxn = + 163.2 kJDetermine the sign of the entropy change for the universe. Is the reaction spontaneous?

###### FREE Expert Solution

$\overline{){\mathbf{∆}}{{\mathbf{S}}}_{{\mathbf{univ}}}{\mathbf{=}}{\mathbf{∆}}{{\mathbf{S}}}_{{\mathbf{sys}}}{\mathbf{+}}{\mathbf{∆}}{{\mathbf{S}}}_{{\mathbf{surr}}}}$

Step 1Determine ΔSsurr:

163,200 J/mol

T = °C + 273.15 = 25 + 273.15 = 298.15 K

93% (128 ratings) ###### Problem Details

Consider the reaction between nitrogen and oxygen gas to form dinitrogen monoxide: 2 N2(g) + O2(g)  →  2 N2O(g), ΔHrxn = + 163.2 kJ

Determine the sign of the entropy change for the universe. Is the reaction spontaneous?

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What scientific concept do you need to know in order to solve this problem?

Our tutors have indicated that to solve this problem you will need to apply the Spontaneous Reaction concept. You can view video lessons to learn Spontaneous Reaction. Or if you need more Spontaneous Reaction practice, you can also practice Spontaneous Reaction practice problems.

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Based on our data, we think this problem is relevant for Professor Ross' class at Itawamba Community College.